How about cstree? https://crates.io/crates/cstree Recently I found that traversal in rowan tree can cost much time. No sure if there's a cheaper way to achieve that. Or, integrate rowan with bump allocator (bumpalo or oxc_allocator)?

> "hand written is always better", I disagree. - Yep. As far as I know, winnow provides SIMD in some cases, while for hand written parsers, writing SIMD can be very hard.